body {
  font-family: '微软雅黑';
  height: 2500px;
}
header {
  width: 100%;
  height: 3%;
  background: rgba(0, 0, 0, 0.02);
}
header .top {
  width: 85%;
  margin: 0 auto;
}
header .top .logo {
  margin-top: 12px;
}
header .top .logo img {
  width: 66px;
}
header .top .nav li {
  float: left;
}
header .top .nav li a {
  font-size: 16px;
  letter-spacing: 0.3em;
  color: #333;
  line-height: 80px;
  margin: 0 30px;
}
header .top .nav li:hover {
  cursor: pointer;
  background: #fff;
}
header .top .nav li:hover a {
  color: #4bbbfa;
}
section {
  height: 115%;
}
section .main {
  width: 100%;
  background: #fff;
  height: 100%;
}
section .main .banner {
  height: 30%;
  width: 100%;
  position: relative;
}
section .main .banner .dot {
  position: absolute;
  bottom: 20px;
  left: 50%;
}
section .main .banner .dot li {
  float: left;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #666;
  margin-left: 10px;
}
section .main .pro {
  height: 100%;
  width: 100%;
  background: url(img/banner.jpg) no-repeat center;
  position: relative;
}
section .main .pro .desc {
  position: absolute;
  top: 18%;
  left: 8%;
  width: 40%;
  height: 82%;
}
section .main .pro .desc .title {
  font-size: 36px;
  line-height: 50px;
  color: #333;
  font-weight: 500;
}
section .main .pro .desc .inside p {
  color: #666;
  line-height: 2em;
}
section .main .pro .desc .inside .about {
  padding-top: 20px;
  font-size: 16px;
  color: #666;
  line-height: 30px;
}
section .main .pro .desc .inside h5 {
  font-size: 18px;
  color: #666;
  padding: 20px 0;
}
section .main .superiority {
  width: 100%;
  background: #4bbbfa;
}
section .main .superiority h3 {
  text-align: center;
  font-size: 36px;
  line-height: 150px;
  color: #fff;
  letter-spacing: 1em;
}
section .main .superiority .list {
  width: 85%;
  margin: 0 auto;
}
section .main .superiority .list li {
  float: left;
  width: 25%;
  margin: 5% 4%;
  text-align: center;
}
section .main .superiority .list li p {
  font-size: 26px;
  color: #fff;
  padding-top: 30px;
  letter-spacing: 0.3em;
}
section .main .superiority .list li .jshi {
  font-size: 20px;
}
section .main .advantage {
  width: 100%;
  height: 800px;
}
section .main .advantage img {
  float: left;
  height: 120%;
  width: 34%;
  margin-left: 5%;
  margin-top: 6%;
}
section .main .advantage h3 {
  text-align: center;
  font-size: 36px;
  line-height: 150px;
  color: #4bbbfa;
  letter-spacing: 1em;
}
section .main .advantage .list {
  width: 50%;
  height: 80%;
  margin: 0 2% 0 40%;
}
section .main .advantage .list li {
  padding: 2% ;
  float: left;
  width: 48%;
  height: 44%;
  margin: 1% ;
  background: #f9f9f9;
  text-align: center;
}
section .main .advantage .list li h4 {
  font-size: 26px;
  color: #4bbbfa;
  line-height: 80px;
  letter-spacing: 0.5em;
  font-weight: normal;
}
section .main .advantage .list li p {
  line-height: 1.5em;
  font-size: 18px;
  color: #4d4d4d;
  height: 40%;
  text-align: center;
}
section .main .advantage .list li:hover {
  cursor: pointer;
  background: #fff;
  box-shadow: 0px 0px 2px 3px rgba(0, 0, 0, 0.02);
}
footer {
  width: 100%;
  background: #333;
  font-size: 12px;
  line-height: 80px;
  color: #fff;
  margin: 0 auto;
}
footer ul {
  padding: 65px 0 0 0;
  color: #ffffff;
  font-size: 0.9em;
  list-style: none;
}
footer ul li {
  padding: 2px;
  font-size: 14px;
}
footer ul li dl {
  font-weight: 400;
  line-height: 1.6;
}
footer ul li a {
  color: #fff;
}
footer ul .am-u-lg-3 {
  width: 25%;
}
footer ul [class*="am-u-"] {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
footer ul [class*="am-u-"] {
  padding-left: 1rem;
  padding-right: 1rem;
  float: left;
  position: relative;
}
footer .am-g {
  margin: 0 auto;
  width: 60%;
}
footer .am-center {
  padding-bottom: 50px;
  text-align: center !important;
  font-size: 1.2em;
  display: block;
  width: 30%;
  margin: 0 auto;
}
